The data visualization above shows the “favicons” of nearly 300,000 Web sites on the Internet. Favicons are small images used to identify a Web site in the browser.
The sizes of the icons are based on the amount of traffic each Web site receives, using data from Alexa.com, a traffic and Web metrics site.
The project, which I came across via Gizmodo, is the work of two programmers, David Fifield and Brandon Enright. They work for a company called Nmap that makes open-source security programs.
By NICK BILTON